For the period between World War II and the full onset of the Cold War, histories of American intelligence seem to go dark. Yet in those years a little known clandestine organization, the Strategic Services Unit (SSU), emerged from the remnants of wartime American intelligence to lay the groundwork for what would become the CIA and, in ways revealed here for the first time, conduct its own secret war of espionage and political intrigue in postwar Europe. Telling the full story of this earl...